Corrigendum to "Ag-doped M2O3 nanoflakes as effective catalyst for lignin liquefaction in supercritical methanol medium" [Ceram. Int. 42 (2016) 4386–4392]. Issue 6 (1st May 2016) - Barakat, Nasser A.M.; Yousef, Ayman; Obaid, M.; Tolba, Gehan M.K.